Dictionary

head louse

noun

Definition of HEAD LOUSE

:  a sucking louse (Pediculus humanus capitis) that lives on the human scalp

First Known Use of HEAD LOUSE

1547

head louse

noun    (Medical Dictionary)

Medical Definition of HEAD LOUSE

:  a sucking louse of the genus Pediculus (P. humanus capitis) that lives on the human scalp

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